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      https://www.ias.ac.in/article/fulltext/pram/052/01/0111-0120

    • Keywords

       

      Magnetic structure; neutron diffraction; alloys

    • Abstract

       

      Magnetic behaviour of di-metal iron phosphide with a small substitution of iron by chromium, (Fe0.97Cr0.03)2P, has been studied using SQUID magnetometry and powder neutron diffraction. It is paramagnetic at temperatures above ∼180 K with persisting short range ferromagnetic (FM) order. At lower temperatures three different regions of magnetic behaviour are identified. FM order evolves in the region 180 K-120 K but much more slowly and with much less magnetic moments than in Fe2P. In the region 120 K-50 K negative exchange interactions gain some importance leading to a loss of FM order. Below 50 K FM interactions again dominate. Pinning centres influence the behaviour at low temperature up to ∼100 K.

    • Author Affiliations

       

      Sudhish Kumar1 S K Paranjpe1 2 Bipin K Srivastava1 Anjali Krishnamurthy1 V C Sahni1 3

      1. Department of Physics, University of Rajasthan, Jaipur - 302 004, India
      2. Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai - 400 085, India
      3. Technical Physics and Prototype Engineering Division, Bhabha Atomic Research Centre, Mumbai - 400 085, India
    • Dates

       
  • Pramana – Journal of Physics | News

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